Pump operated oiler made to attach to oil cans



PUMP OPERATED OILER MADE TO ATTACH T0 OIL CANS Filed Sept. 8, 1958 A. P-GERFEN Oct. 17, 1961 2 Sheets-Sheet 1 INVENTOR. A27 I103 k Giff! BYATTORNEY PUMP OPERATED OILER MADE TO ATTACH TO OIL CANS Filed Sept. 8,1958 A. P. GERFEN Oct. 17, 1961 2 Sheets-Sheet 2 IN VENTOR. fill/ 0R RGERFEN United States Patent f 3,004,687 PUMP OPERATED OILER MADE TOATTACH T0 OIL CANS Arthur P. Gerfen, Box 1132, Cushing, Okla. FiledSept. 8, 1958, Ser. No. 759,572 4 Claims. (Cl. 222-82) This inventionrelates to dispensing apparatus and, more particularly, to a device forforcibly ejecting the contents of a can under pressure.

There are many various types and grades of lubricants now on the marketthat vary in viscosity so that some are difiicult to pour outwardly fromthe can by gravity. In other instances, the opening of an oil cansubjects the contents thereof to 'dust, moisture, and other harmfulelements in the air as the oil is being used. Accordingly, it is anobject of the present invention to provide a combined oil can tappingand oil dispenser device that is extremely simple in construction,etficient in operation, and which will overcome the aforementioneddifliculties.

Another object of the present invention is to provide a combined oil cantapping and dispensing device that may be readily attached to andremoved from conventional oil cans so as to make it universallyadaptable for use with all types and grades of lubricant.

Still an additional object of. the present invention is to provide acombined tapping and dispensing device of the type described which willdispense the contents of oil cans under pressure so as to save aconsiderable amount of time, completely empty the contents of the can,and to provide for the emptying of such cans without spilling.

All of the foregoing and still further objects and advantages of thisinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawing,wherein:

7 FIGURE 1 is a perspective view of an oil can tapping and dispensingdevice made in accordance with the present invention in operative use;

FIGURE 2 is a longitudinal cross sectional view taken along line 2-2 ofFIGURE 1;

FIGURE 3 is a perspective view of a trigger member forming a part of thepresent invention;

FIGURE 4 is a perspective view of an eye hook forming another part ofthe present invention;

FIGURE 5 is a perspective view of a cylinder end bushing forming stillanother part of the present invention;

FIGURE 6 is an enlarged fragmentary longitudinal cross sectional view ofcertain parts of the apparatus shown in FIGURE 2;

FIGURE 7 is a front end elevational view of the main body of the pumpshown in FIGURE 1;

FIGURE 8 is a side elevational View of the apparatus shown in FIGURE 7;

FIGURE 9 is a perspective view of certain portions of a mounting plateassembly forming another part of the present invention;

FIGURE 10 is a perspective view of a gasket member forming still anotherpart of the present invention;

FIGURE 11 is a perspective view of a hand grip member forming a furtherpart of the present invention;

FIGURE 12 is an enlarged transverse cross sectional view taken alongline 12-.12 of FIGURE 9;

FIGURE 13 is an enlarged fragmentary transverse cross sectional viewtaken along line 13-13 of FIGURE 1; and

FIGURE 14 is an enlarged fragmentary plan view of certain parts of thehand grip member shown in FIGURE 11.

Referring now to the drawing, and more particularly to FIGURES 1 and 2thereof, a combined oil can tapping and dispenser device 15 made inaccordance with the 3,004,687 Patented Oct. 17, 1961 present inventionis shown to include a mounting plate assembly for attaching the unit tothe top of a conventional oil can.

As is more clearly shown in FIGURE 9 of the drawing, the mounting plateassembly includes a pair of spaced apart segmental circular plates 16integrally connected together by means of a hand grip member 18 thatextends therebetween and is provided with a pair of apertured ears 20through which rivets 22 extend, as shown in FIGURE 12. The main bodymember 24 of the operating mechanism is secured to the apertured portionof the hand grip member 18, such as by rivets, pins, or the like. Atubular member 26 extends through an aperture in the hand grip member 18and is threadedly engaged within an internally threaded bore in the mainbody member 24 that communicates with a central chamber 28. A ball typecheck valve 30 opening inwardly into the chamber 28 is normallymaintained in closing engagement with the adjacent end of the tube 26 bymeans of a compression spring 32. The inner end of this chamber 28 isalso in communication with a main cylinder 36 through an outlet port 34.A piston 38 supported within the cylinder 36 for reciprocatinglongitudinal movement by means of a plunger 40 that extends outwardlythrough an end bushing 42, is normally urged toward an outward directionby means of an internal compression spring 44.

The chamber 28 is' also provided with a central aperture 46 within whicha second ball type check valve 48 is normally seated so as to block flowthrough a nozzle 5i) carried upon the main body member 24 at a pointopposite from the tube 26. A spring 52 normally maintains the ballmember 48 in closing engagement with the aperture 46. The main bodymember 24 is also provided with an additional bore 54 that communicateswith the inner end of the nozzle 50 that is normally closed by a hanghook eye 56. Accordingly, it is possible to interchange the positions ofthe nozzle 50 with the hang hook 56, should such be desired. Anothertube 58 carried by the main body member 24 communicates with theinterior of the cylinder 36 at the end opposite from the outlet 34. Thistube 58 serves as an inlet, as will be hereinafter more fully described.

The handle grip mmeber 18 is also provided with a pair of upwardlyextending, spaced apart and parallel arms 66 that rotatably support atrigger member 62 by means of a transversely extending pivot pin 64.This trigger member 62 includes a depending pressure member 60 that isin abutting engagement with the outer end of the plunger 40 that issupported for reciprocating longitudinal movement upon the hand grip 18through an apertured guide plate 70. Each of the upstanding brackets 66is provided with an inwardly extending lug 68 that serves as a stopwhich limits the downward movement of the trigger 62. It will thus berecognized that a downward pressure upon the trigger member 62 isoperative to cause the pressure member 60 to urge the plunger 40 andpiston 38 inwardly against the action of the spring 44, all for purposeshereinafter more fully explained.

Another pair of upstanding flanges '72, one on each of the segmentalcircular plates 16 threadedly supports a thumb screw 74 which may beused to clamp the mo|unting plate assembly to the top of a can 86.However, a gasket member 76 is first seated within the recess formed bythe upwardly extending bead 78 and the end of the can 80, such gasket 76being provided with a pair of guide bushings 84, 86 that effectivelyguide the tubes 26, 58 into proper piercing engagement with the end wall35 of the can, such gasket 76 further serving to prevent leakage of thecontents of the can during the dispensing thereof.

In actual use, the thumb screw 74 is threaded outwardly so as to enablethe depending webs 82 of the mounting plates to be spread apart so as toreceive the end of the 3 can therebetween, following which the thumbscrew 74 is tightened so as to secure the assembly to the can. However,before this is done, the tubes 26, 58 are forced downwardly through thebushings 84, 86 of the gasket 76 into piercing relationship with the canso that'the parts assume the position illustrated in FIGURES 1 and 2 ofthe drawing. With the parts properly clamped in place, the firstdownward movement of the trigger 62 is operative to merely force airoutwardly from the chamber 36 and through the aperture 46 in the mainbody member 24. Upon the return movement of the piston 33 by the spring44, a partial vacuum is created within the chamber 28 so as to draw oilupwardly through the tube 26 past the check valve 30 and into theinterior of the cylinder 36. As the result, the next downward movementand all subsequent downward movements of the trigger 62 is operative toforce such oil contained within the cylinder 36 into the nozzle 50 andoutwardly through the end thereof. The outlet tube 58 serves to allowthe rearward movement of the piston 38 without a build up of pressurethat would otherwise interfere with the proper operation of themechanism. The check valve 48 is normally closed and allows the oil tobe drawn upwardly through the tube 26 during the return stroke of thepiston 38.

While this invention has been described with particular reference to theconstruction shown in the drawing, it is to be understood that such isnot to be construed as imparting limitations upon the invention, whichis best defined by the claims appended hereto.

Having thus described my invention, I claim as new and desired tosecured by Letters Patent:

1. An oil can tapping and dispenser device comprising, in combination, asubstantially rigid main body portion, a mounting plate supporting saidmain body portion, clamp means integral with said mounting platereleasably securing said mounting plate upon the end wall of acylindrical can, said main body portion including a pump cylinder, apair of ducts having piercing means carried by 'saidmain body portionfor piercing the end wall of the can for tapping the contents therefrom,a discharge nozzle extending outwardly from said main body portion, anoil inlet check valve communicating with one end of said cylinder andwith one of said ducts, an oil outlet check valve communicating withsaid one end of said cylinder and with'said nozzle, a piston slidablysupported in said cylinder means to efiect reciprocating longitudinalmovement of said, piston, the other of said ducts communicating with theother end of said cylinder, said mounting plate assembly comprising apair of sp'acedapart segmental circular plates, a handle grip memberconnected between said plates, and said main body portion being mountedupon said handle grip member.

2. An oil can tapping and oil dispenser device as set forth in claim 1,further comprising a trigger, a pair of spaced apart brackets integralwith said handle grip member pivotally supporting said trigger, andpressure means acting between said trigger and said piston for effectingsaid reciprocating longitudinal movement.

3. An oil can tapping and oil dispenser device as set forth in claim 2,wherein said pressure means comprises a plunger carried by said pistonextending rearwardly outwardly of said cylinder, and a crank armintegral with said trigger in abutting engagement with said plunger.

4. An oil can tapping and oil dispenser device as set forth in claim 3,wherein said clamp means comprises a plurality of circumferentiallyspaced apart spring fingers depending from said mounting plate assemblyslidably engaging the sides of said can.

References Cited in the file of this patent UNITED STATES PATENTS1,344,801 Kitaoka June 29, 1920 2,086,467 Bryan July 6, 1937 2,257,725Davis Oct. 7, 1941 2,454,343 Rotter et a1 Nov. 23, 1948 2,492,309 Milleret al Dec. 27, 1949 2,792,969 Anderson May 21, 1957

